Embodiments of the present invention disclose a signal sending method and apparatus and a signal receiving method and apparatus. The signal sending method includes: generating, by a network device, a first signal, where the first signal includes at least one sequence pair, each of the at least one sequence pair includes two sequences, and an element value of one sequence of the two sequences is a value obtained by calculating, according to a first calculation rule, an element value of the other sequence of the two sequences and an element value of a first sequence corresponding to the other sequence, where each sequence in the at least one sequence pair and the first sequence are complex sequences with lengths greater than 1; and sending, by the network device, the first signal to a terminal device.
Legal claims defining the scope of protection, as filed with the USPTO.
2. The method according to claim 1, wherein the first sequence corresponding to the other sequence is a subsequence of a second sequence.
3. The method according to claim 1, wherein the other sequence is a sequence obtained by calculating N sequences according to a second calculation rule, and N is a natural number greater than or equal to 2.
4. The method according to claim 1, wherein the one sequence and the other sequence of the two sequences in the sequence pair are sequences carried in adjacent time domain symbols.
5. The method according to claim 1, wherein the first signal indicates whether the terminal device has paging scheduling information associated with the terminal device, or the first signal indicates a cell identifier of a cell serving the terminal device.
11. The apparatus according to claim 10, wherein the first sequence corresponding to the other sequence is a subsequence of a second sequence.
12. The apparatus according to claim 10, wherein the other sequence is a sequence obtained by calculating N sequences according to a second calculation rule, and N is a natural number greater than or equal to 2.
13. The apparatus according to claim 10, wherein the one sequence and the other sequence of the two sequences in the sequence pair are sequences carried in adjacent time domain symbols.
14. The apparatus according to claim 10, wherein the first signal indicates whether the terminal device has paging scheduling information associated with the terminal device, or the first signal indicates a cell identifier of a cell serving the terminal device.
16. The apparatus according to claim 15, wherein the processor is configured to: multiply a conjugate sequence of the other sequence of the two sequences by the one sequence of the two sequences, to obtain the third sequence corresponding to the other sequence, and an element value of the conjugate sequence of the other sequence is a conjugate complex number of the element value of the other sequence.
18. The apparatus according to claim 15, wherein the processor is configured to: when the first sequence corresponding to the other sequence is a subsequence of a second sequence, obtain a fourth sequence, wherein the fourth sequence is a sequence comprising the third sequence corresponding to the other sequence in each of the at least one sequence pair; and perform a convolution operation or a circular convolution operation on the second sequence and the fourth sequence, and determine the timing position based on an operation result.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
February 11, 2020
September 13, 2022
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